A train is moving at a speed of 31 m/s toward a stationary observer at a train station. The train whistle blows with an actual frequency of 348 Hz. What horn frequency is heard by the engineer (riding on the train)?

You will be galileo perform the experiment to determine if objects with different mass fall at the same, or different, rates in the air and in a vacuum. (refer to the walk-through video to locate the online lab within the online textbook).

Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.

State the following: boyle's law and charle's law